You can always rename a worksheet if you want to change the worksheet name, please see below for details.
1. Double Click
The easy way is double click the worksheet name, and type the correct name you want to use. The new name will appear.
2. Right Click
You can follow the steps below to rename a worksheet:
Step 1: Click any cell in the worksheet you want to rename;
Step 2: Right-click on the worksheet name and select "Rename" from the dialog box, then type a new name.
3. Commands in the Ribbon
Alternatively, please use the commands from the ribbon.
Step 1: Click any cell in the worksheet you want to rename;
Step 2: Click the "Home" Tab in the ribbon;
Step 3: Click "Format" in the Cells section, and select "Rename Sheet" from the drop down list;
Step 4: Type a new worksheet name, then press Enter key or click any cell in the worksheet.